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Finding the Fourth Proportional to 18,566.65, 27,859.17 and 8,706.69

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Solution

The fourth proportional to 18,566.65, 27,859.17 and 8,706.69 is: 13,064.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,566.65 : 27,859.17 = 8,706.69 : x
  2. Step 2: Convert to fraction form
    18,566.65/27,859.17 = 8,706.69/x
  3. Step 3: Cross multiply
    18,566.65x = 27,859.17 × 8,706.69
  4. Step 4: Simplify right side
    18,566.65x = 242,561,189.50
  5. Step 5: Solve for x
    x = 242,561,189.50/18,566.65
  6. Step 6: Final answer
    x = 13,064.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.